The Dallas Cowboys defense enters the 2026 season with nowhere to go but up after finishing as the league’s worst unit in 2025. New defensive coordinator Christian Parker carries massive expectations from a fan base desperate for improvement, and while a top-10 turnaround feels unrealistic in Year 1, there are early signs of optimism emerging from the team’s offseason work.

Cowboys insider Joseph Hoyt of the Dallas Morning News recently offered a revealing assessment of where the defense stands before training camp, and it centers on one word: communication. 

Cowboys defense is off to a strong start

Before getting to Hoyt’s comments—which he made in a conversation previewing training camp with me in our A to Z Sports Dallas YouTube channel—it’s worth revisiting a concept that applies directly to what Parker is trying to build in Dallas.

Denver Broncos defensive coordinator Vance Joseph once told The Athletic’s Robert Mays that a defense takes time to gel. According to Mays, Joseph said the third year is when everything comes together because, “that’s when the players go beyond just learning and adjusting the rules of the system and begin to twist and break them to their advantage.”

That framework matters here. It’s unfair to ask Parker to walk in and immediately lead a standout defense, especially considering the mess he inherited. The Cowboys’ biggest problem under former coordinator Matt Eberflus was communication, and fixing that alone could take a full season.

This is where the optimism comes into play: Hoyt offered a surprisingly bullish take on where the defense stands even before training camp begins.

After discussing the Vance Joseph timeline for building a defense, Hoyt pushed back on the idea that Dallas is starting from scratch.

“That (Joseph) quote is great, because I don’t know (the Cowboys are) at step one still, to be honest,” Hoyt said. “And maybe that’s getting a little bit bullish. I feel like there might be step one and a half already.”

Hoyt pointed to the early communication he’s observed as the reason for his optimism, saying the connectivity looked “miles beyond where they were at the end of last year.”

He did note that safety PJ Locke, who played under Parker in Denver, cautioned against reading too much into the early returns.

“He told me like, hey, it’s going to take time,” Hoyt said of Locke. “Like, don’t get it twisted. What we’re learning right now, we’re still very early in this.”

Hoyt acknowledged the bar from 2025 was low. He’s right. But hearing an unbiased Cowboys insider say the defense is already on the same page before training camp even starts is the single biggest reason for optimism right now.

What Parker did in Philadelphia is promising

The résumé speaks for itself. Parker served as the Philadelphia Eagles’ defensive backs coach and defensive pass game coordinator, and the numbers from the 2024-25 stretch are staggering. Per NFL Researcher, the Eagles ranked second in opponent completion percentage over those two seasons, holding opponents below 60%. Philadelphia also led the league in pass yards per game allowed, pass yards per attempt allowed, pass touchdowns allowed, and opponent passer rating.

Those numbers are superlative. Dallas is hoping to replicate some of that success.

But here’s the thing about those Eagles defenses: Philadelphia had two All-Pro cornerbacks and played man coverage at the highest rate in the NFL last season. The Cowboys don’t have that kind of cornerback talent. I’d expect Parker to lean more heavily on zone coverage in Dallas, which is fine, but it’s a key difference that tempers expectations.

The foundation is there

Communication alone won’t fix everything. But when you layer in the roster improvements at linebacker, the potential upgrades at cornerback, and one of the best defensive tackle units in the NFL with Kenny Clark and Quinnen Williams leading the way, the picture starts to look different.

Will it be elite? Probably not yet. Will it be markedly better than the disaster of 2025? The early signs suggest yes. Now we wait for training camp to confirm it.